Market Participant 26-Mar-12 Applicant Name Active in Energy Markets Active in TR Market 2143718 Ontario Ltd. Yes ABB INC. Yes ABIBOW CANADA INC. Yes ACH LIMITED PARTNERSHIP Yes AINSWORTH ENGINEERED CANADA LIMITED PARTNERSHIP Yes AIR LIQUIDE CANADA INC. Yes AIR PRODUCTS CANADA LTD. Yes ALGOMA POWER INC. Yes ALGONQUIN POWER (NAGAGAMI) LIMITED PARTNERSHIP Yes "ALLETE, INC. D/B/A MINNESOTA POWER" Yes Yes AMERICAN WATER CANADA CORP. Yes ANDRE GAUTHIER HOLDING INC. Yes ARCELORMITTAL DOFASCO INC. Yes Yes ASW STEEL INC. Yes ATIKOKAN HYDRO INC. Yes ATLANTIC PACKAGING PRODUCTS LTD. Yes ATLANTIC POWER SERVICES CANADA LP Yes ATOMIC ENERGY OF CANADA LIMITED Yes ATTAWAPISKAT POWER CORPORATION Yes AURICO GOLD INC. Yes BARRICK GOLD CORPORATION - HOLT McDERMOTT MINE Yes BEAVER POWER CORPORATION Yes BJ ENERGY LLC Yes BLUEWATER POWER DISTRIBUTION CORPORATION Yes BNP PARIBAS ENERGY TRADING CANADA CORP. Yes Yes BOWATER CANADIAN FOREST PRODUCTS INC. Yes BP CANADA ENERGY COMPANY Yes Yes BRANT COUNTY POWER INC. Yes BRANTFORD POWER INC. Yes BRIGHTON BEACH POWER L.P. Yes BROOKFIELD ENERGY MARKETING INC. Yes Yes BROOKFIELD ENERGY MARKETING LP Yes Yes BROOKFIELD POWER WIND PRINCE LP Yes BROOKFIELD RENEWABLE ENERGY MARKETING LP Yes BRUCE POWER INC. Yes BURLINGTON HYDRO INC. Yes BUTTCON ENERGY INC. CAMBRIDGE AND NORTH DUMFRIES HYDRO INC. Yes "CANADIAN HYDRO DEVELOPERS, INC." Yes CANADIAN NIAGARA POWER INC. Yes CANADIAN RENEWABLE ENERGY CORPORATION Yes CANADIAN WOOD PRODUCTS - MONTREAL INC. CAPITAL POWER INCOME L.P. Yes "CARDINAL POWER OF CANADA, L.P." Yes "CARGILL ENERGY TRADING CANADA, INC." Yes Yes CARMEUSE LIME (SPRAGGE) LIMITED Yes CARMICHAEL LIMITED PARTNERSHIP Yes CASCO INC. - CARDINAL Yes CAT LAKE POWER UTILITY LTD. Yes CENTRE LANE TRADING LIMITED Yes Yes CENTRE WELLINGTON HYDRO LTD. Yes CHAPLEAU PUBLIC UTILITIES CORPORATION Yes CHATHAM-KENT HYDRO INC. Yes CITADEL FINANCIAL PRODUCTS S.A.R.L. Yes CITIGROUP ENERGY CANADA ULC Yes Yes CLEAN POWER OPERATING TRUST Yes CLINTON POWER CORPORATION Yes COCHRANE POWER CORPORATION Yes Yes COLLUS POWER CORP Yes COMBER WIND LIMITED PARTNERSHIP Yes COMSATEC INC. Yes Yes CONSTELLATION ENERGY COMMODITIES GROUP INC. Yes Yes "CONSTELLATION NEWENERGY, INC." Yes CONSUMERS ENERGY COMPANY Yes CP ENERGY MARKETING L.P. Yes Yes CP REGIONAL POWER SERVICES LIMITED PARTNERSHIP Yes CP RENEWABLE ENERGY (KINGSBRIDGE) LP Yes CYTEC CANADA INC. Yes DB ENERGY TRADING LLC "DC ENERGY, LLC" Yes Yes DE BEERS CANADA INC. Yes DETOUR GOLD CORPORATION Yes DIRECT ENERGY MARKETING INC. Yes Yes DIRECT ENERGY MARKETING LIMITED Yes Yes DOMTAR INC. Yes DTE ENERGY TRADING INC. Yes Yes DUKE ENERGY MARKETING LIMITED PARTNERSHIP Yes Yes DYNASTY POWER INC. Yes Yes "DYNEGY POWER MARKETING, INC." Yes Yes DYNO NOBEL NITROGEN INC. Yes E. L. K. ENERGY INC. Yes EACOM TIMBER CORPORATION Yes EAST LAKE ST. CLAIR WIND INC. EAST WINDSOR COGENERATION LP Yes ECOTRICITY GUELPH INC. Yes "EDF TRADING NORTH AMERICA, LLC" Yes Yes EMERA ENERGY INCORPORATED Yes Yes ENBALA POWER NETWORKS INC. Yes ENBRIDGE PIPELINES INC. Yes ENBRIDGE RENEWABLE ENERGY INFRASTRUCTURE LP Yes ENERGY ADVANTAGE INC. Yes ENERGY OTTAWA INC. Yes ENERGY PROFILES LIMITED Yes ENERSOURCE HYDRO MISSISSAUGA INC. Yes ENWIN UTILITIES LTD. Yes ERIE SHORES WIND FARM LIMITED PARTNERSHIP Yes ERIE THAMES POWERLINES CORPORATION Yes ERIEAU WIND INC. ESSAR STEEL ALGOMA INC. Yes ESSEX POWERLINES CORPORATION Yes ESSROC CANADA INC. Yes Yes "EXELON GENERATION COMPANY, LLC" Yes Yes FALCONBRIDGE LIMITED - GECO DIVISION Yes FALCONBRIDGE LIMITED - MATTABI DIVISION Yes FESTIVAL HYDRO INC. Yes FIRST NICKEL INC. Yes FIVE NATIONS ENERGY INC Yes FLAKEBOARD COMPANY LIMITED Yes "FORD MOTOR COMPANY OF CANADA, LIMITED" Yes "FORD MOTOR COMPANY OF CANADA, LIMITED - ESSEX SITE" Yes Yes "FORD MOTOR COMPANY OF CANADA, LIMITED - ST. THOMAS" Yes Yes "FORD MOTOR COMPANY OF CANADA, LIMITED - WINDSOR" Yes FORT ALBANY POWER CORPORATION Yes FORT FRANCES POWER CORPORATION Yes FORTISONTARIO INC. Yes "GDF SUEZ ENERGY MARKETING NA, INC." Yes GEMINI-SRF POWER CORPORATION Yes GENERAL MOTORS OF CANADA LTD Yes GENSET RESOURCE MANAGEMENT INC. Yes "GEORGIA-PACIFIC CANADA, INC." Yes GERDAU AMERISTEEL CORPORATION Yes GERDAU AMERISTEEL CORPORATION -CAMBRIDGE Yes "GLEN MILLER POWER, LIMITED PARTNERSHIP" Yes GOLDCORP CANADA LTD. Yes Yes GOREWAY STATION PARTNERSHIP Yes GOSFIELD WIND LIMITED PARTNERSHIP Yes GREAT LAKES POWER LIMITED - GENERATION DIVISION Yes Yes GREAT LAKES POWER TRANSMISSION LP Yes GREATER SUDBURY HYDRO INC. Yes GREATER TORONTO AIRPORTS AUTHORITY Yes GREENFIELD ENERGY CENTRE LP Yes "GREENWICH WINDFARM, LP" Yes GRIMSBY POWER INCORPORATED Yes GUELPH HYDRO ELECTRIC SYSTEMS INC. Yes GUELPH HYDRO ELECTRIC SYSTEMS INC. - ROCKWOOD DIV. Yes HALDIMAND COUNTY HYDRO INC. Yes HALEY INDUSTRIES LIMITED Yes HALTON HILLS HYDRO INC. Yes HAMILTON RENEWABLE POWER INC. Yes HAMILTON SPECIALTY BAR (2007) INC. Yes HEARST POWER DISTRIBUTION COMPANY LIMITED Yes HORIZON UTILITIES CORPORATION Yes HQ ENERGY MARKETING INC. Yes Yes HYDRO HAWKESBURY INC./HAWKESBURY HYDRO INC. Yes HYDRO ONE BRAMPTON NETWORKS INC. Yes HYDRO ONE NETWORKS INC. Yes HYDRO OTTAWA LIMITED Yes IBM CANADA LTD. Yes IMPERIAL OIL LIMITED Yes Yes INMET MINING CORPORATION Yes INNISFIL HYDRO DISTRIBUTION SYSTEMS LIMITED Yes "INTEGRYS ENERGY SERVICES, INC." Yes Yes INTERLAKE ACQUISITION CORPORATION LIMITED Yes INVISTA CANADA COMPANY Yes INVISTA CANADA COMPANY - BATH SITE Yes IROQUOIS FALLS POWER CORP. Yes Yes IVACO ROLLING MILLS 2004 L.P. Yes Yes J.P. MORGAN COMMODITIES CANADA CORPORATION Yes Yes J.P. MORGAN VENTURES ENERGY CORPORATION Yes JANE LAUGHTON Yes KASHECHEWAN POWER CORPORATION Yes KENORA HYDRO ELECTRIC CORPORATION LTD. Yes Yes "KIEWIT-ALARIE, A PARTNERSHIP" Yes KINGSTON COGEN LIMITED PARTNERSHIP Yes KINGSTON HYDRO CORPORATION Yes KIRKLAND LAKE GOLD INC. Yes KIRKLAND LAKE POWER CORP Yes KITCHENER-WILMOT HYDRO INC. Yes KRUGER ENERGY CHATHAM LIMITED PARTNERSHIP Yes KRUGER ENERGY INC. Yes KRUGER ENERGY PORT ALMA LIMITED PARTNERSHIP Yes LAC DES ILES MINES LTD./NORTH AMERICAN PALLADIUM Yes LAFARGE CANADA INC. CEMENT OPERATIONS Yes LAKE SHORE GOLD CORP. Yes LAKE SUPERIOR POWER LIMITED PARTNERSHIP Yes LAKEFRONT UTILITIES INC Yes LANXESS INC. Yes LOBLAWS INC. Yes LONDON HYDRO INC. Yes LONG SAULT JOINT VENTURE Yes LOUIS DREYFUS ENERGY SERVICES L.P. Yes LOWER MATTAGAMI ENERGY LIMITED PARTNERSHIP Yes MAG ENERGY SOLUTIONS INC. Yes Yes MANITOBA HYDRO ELECTRIC BOARD Yes Yes MARATHON PULP INC. Yes MCMASTER UNIVERSITY Yes Yes "MERRILL LYNCH COMMODITIES CANADA, ULC" Yes MIDDLESEX POWER DISTRIBUTION CORPORATION Yes MIDLAND POWER UTILITY CORPORATION Yes MILMAN MINING INC. Yes MILTON HYDRO DISTRIBUTION INC. Yes MISSISSAGI POWER TRUST Yes "MMFX STEEL OF CANADA, INC." Yes MORGAN STANLEY CAPITAL GROUP INC. Yes Yes NATIONAL RESEARCH COUNCIL CANADA Yes NEW YORK POWER AUTHORITY Yes Yes NEWMARKET - TAY POWER DISTRIBUTION LTD. Yes "NEXTERA ENERGY POWER MARKETING, LLC" Yes Yes NIAGARA PENINSULA ENERGY INC. Yes NIAGARA-ON-THE-LAKE HYDRO INC. Yes NOBLE AMERICAS GAS & POWER CORP. Yes Yes NORAMPAC INC. - TRENTON DIVISION Yes NORFOLK POWER DISTRIBUTION INC. Yes NORTH BAY HYDRO DISTRIBUTION LIMITED Yes "NORTHERN ONTARIO WIRES, INC." Yes NORTHERN STATES POWER COMPANY Yes Yes NORTHGATE MINERALS CORPORATION NORTHPOINT ENERGY SOLUTIONS INC. Yes Yes NOVA CHEMICALS (CANADA) LTD. Yes Yes NOVELIS INC. Yes NRG POWER MARKETING LLC Yes Yes O.N.TEL INC. Yes OAKVILLE HYDRO ELECTRICITY DISTRIBUTION INC. Yes ONTARIO ELECTRICITY FINANCIAL CORPORATION Yes Yes ONTARIO POWER GENERATION INC. Yes Yes ORANGEVILLE HYDRO LIMITED Yes ORILLIA POWER DISTRIBUTION CORPORATION Yes OSHAWA PUC NETWORKS INCORPORATED Yes OXY VINYLS CANADA CO. Yes PANABRASIVE INC. Yes PAR-PAK LTD Yes PARRY SOUND POWER CORPORATION Yes PETERBOROUGH DISTRIBUTION INC. Yes PETERBOROUGH UTILITIES INC. Yes POINTE-AUX-ROCHES WIND INC. Yes PORT COLBORNE HYDRO INC. Yes PORTLANDS ENERGY CENTRE INC. Yes POWEREX CORP Yes Yes POWERSTREAM INC. Yes POWERTRAIL INC. Yes "PPL ENERGYPLUS, LLC" Yes PRAXAIR CANADA INC. Yes PREMSTAR ENERGY CANADA LTD. Yes PUC DISTRIBUTION INC. Yes RAINBOW ENERGY MARKETING CORPORATION Yes Yes RALEIGH WIND POWER PARTNERSHIP Yes RBC ENERGY SERVICES LP Yes Yes RED LAKE GOLD MINES Yes "RED ROCK MILL, INC." Suspending RIDEAU ST.LAWRENCE DISTRIBUTION INC. Yes RODAN ENERGY & METERING SOLUTIONS INC. Yes ROYAL BANK OF CANADA Yes Yes SAINT-GOBAIN CERAMIC MATERIALS CANADA INC. Yes SARACEN POWER LP Yes SCOTIA CAPITAL ENERGY INC. Yes Yes SESCO ENTERPRISES CANADA LTD. Yes Yes SHELL CANADA PRODUCTS Yes SHELL ENERGY NORTH AMERICA (CANADA) INC. Yes Yes SIFTO CANADA CORP. Yes SKYJACK INC. Yes ST. ANDREW GOLDFIELDS LTD. Yes "ST. CLAIR POWER, L.P." Yes ST. MARYS CEMENT INC. (CANADA) Yes ST. MARYS PAPER CORP. Yes ST. THOMAS ENERGY INC. Yes SUN-CANADIAN PIPE LINE COMPANY LIMITED Yes SUNCOR ENERGY PRODUCTS INC. - RIPLEY Yes SUNCOR ENERGY PRODUCTS PARTNERSHIP Yes TALBOT WINDFARM LP Yes TEMBEC ENTERPRISES INC. Yes "TEMBEC PULP GRP-KRAFT PULP DIV.,SMOOTH ROCK FALLS" Pending Withdrawal TEMBEC-KAPUSKASING OPERATIONS "TENASKA POWER CANADA, A DIVISION OF TPS CORP." Yes Yes TERRA INTERNATIONAL (CANADA) INC. Yes TERRACE BAY PULP INC. Yes THE DETROIT EDISON COMPANY Yes Yes THOROLD COGEN L.P. Yes THUNDER BAY FINE PAPERS INC. Suspending THUNDER BAY HYDRO ELECTRICITY DISTRIBUTION INC. Yes TILLSONBURG HYDRO INCORPORATED Yes TIMMINCO LIMITED Yes TORONTO DISTRICT SCHOOL BOARD Yes TORONTO HYDRO ENERGY SERVICES INC. Yes Yes TORONTO HYDRO-ELECTRIC SYSTEM LIMITED Yes TOYOTA MOTOR MANUFACTURING CANADA INC. Yes "TRACTEBEL CANADA INC., WEST WINDSOR POWER" Yes TRANSALTA COGENERATION LP Yes TRANSALTA ENERGY MARKETING (U.S) INC. Yes Yes TRANSALTA ENERGY MARKETING CORP. Yes Yes TRANSALTA GENERATION PARTNERSHIP Yes TRANSCANADA ENERGY LTD. Yes Yes TRANSCANADA PIPELINES LIMITED Yes TRANSCANADA POWER MARKETING LTD. Yes Yes TWIN FALLS LIMITED PARTNERSHIP Yes U.S. STEEL CANADA INC. Yes UMBATA FALLS LIMITED PARTNERSHIP Yes UMH ENERGY PARTNERSHIP Yes VALE INCO LIMITED Yes Yes VALERIE FALLS LIMITED PARTNERSHIP Yes VERIDIAN CONNECTIONS INC. Yes VERIDIAN CONNECTIONS INC. - GRAVENHURST Yes VITOL INC. W&E INTERNATIONAL (CANADA) CORP. Yes WASAGA DISTRIBUTION INC. Yes WASHINGTON MILLS ELECTRO MINERALS CORPORATION Yes WATERLOO NORTH HYDRO INC. Yes WELLAND HYDRO ELECTRIC SYSTEM CORP. Yes WELLINGTON NORTH POWER INC. Yes WESCAST INDUSTRIES INC. Yes WESDOME GOLD MINES LTD. Yes WEST COAST HURON ENERGY INC. Yes "WEST OAKS ENERGY NY/NE, LP" Yes Yes WEST PERTH POWER INC Yes WESTARIO POWER INC Yes WEYERHAEUSER COMPANY LIMITED Yes WHITBY COGENERATION LIMITED PARTNERSHIP Yes WHITBY HYDRO ELECTRIC CORPORATION Yes WILLIAMS OPERATING CORPORATION Yes WINDSOR CASINO LIMITED Yes WOODSTOCK HYDRO SERVICES INC. Yes XSTRATA CANADA CORPORATION Yes Yes YORK ENERGY CENTRE LP Yes .